Metal and concrete railway-sleeper.



J. T. CARNEY.

METAL AND CONCRETE RAILWAY SLEEPER.

APPLICATION man JUNE 10. m4. RENEWED APR. 30. 1915. 1.1%8fi5.

Patented July 27, 1915.

IA/MENTOR faifia Flam W/zey WITNESSES 1 5.

A TTOR/VEYS COLUMBIA PLANOGRAPH 60.,WASH1NOTON, D. C.

I Fla.

JESSE THOMAS CARNEY, OF RIO DE JANEIRO, BRAZIL.

METAL AND CONCRETE RAILWAY-SLEEPER Specification of Letters Patent.

Patented July 27, 1915.

Application filed June 10, 1914, Serial No. 844,222. Renewed April 30, 1915. Serial No. 25,050.

To all whom it may concern:

Be it known that I, Jnssn THOMAS OAR- NEY, citizen of the United States of Amen ica, residing at Rio de Janeiro, Brazil, have invented certain new and useful Improvements in Metal and Concrete Railway- Sleepers, of which the following is a specification.

The object of this present invention is a new type of sleeper, of metal and concrete, for rail-roads and the like, of very simple construction.

In the accompanying diagram: the Figure 1 is a longitudinal design of a sleeper according to the invention; in the left part of this figure the concrete situated to the right of the line XY in Fig. 2, which is a cross section on the line 2-2 in Fig. 1, is broken and removed, Fig. 3 is a fragmentary upper view of the metallic portion of the sleeper.

The metallic portion of the sleeper consists of an iron or steel plate A, possessing, upon its opposite sides, the flanges B B which form acute angles with the main body of the plate, as a rule of 30. These flanges B B are formed by the metal of the plate A itself. For this purpose in the plate A a series of cuttings a Z) c are made in the shape of a U, equally distant one from the other, and which begin and finish, each one, in a line parallel to the sides lengthwise of the plate. These cuttings reach through all the thickness of the plate, and thus the metallic part (Z surrounded by each cutting can be doubled by the line on which the cuttings begin and finish. Supposing that the numerical order 1, 2, 3, t, 5 is given to the parts d; all the parts 65 of the uneven numbers (1, 3, 5 are bent on one side of the plate A, from left to right in the Fig. 1, to form the flanges B (or B Figs. 2 and 3, and all the parts d of the even numbers (2, l, 6 are bent on the other side of the plate, so as to form the flanges B (or respectively B In this manner each flange B on one of the sides of the plate A, rests situated in the interval of the two flanges B on the other side of the plate, and vice-versa, as is seen clearly in Fig. 8.

The metallic portion of the sleeper is embedded in a block of concrete C, which surrounds it on all sides. This block is in the shape of a triangular prism. The main body of the plate A is in a central andperpendicular position in relation to one of the faces of the prism, and thus the flanges B and B rest substantially parallel to the other faces of the prism, respectively. This sleeper is designed to be laid in the bed of the track in the position shown in Figs. 1 and 2, in which the principal portion of the plate rests in a vertical position, and the flanges B 13 turned downward. The chairs D D for the rails are fiXed on the plate A before or after the concrete is molded thereon. In the latter case it will be necessary to break and remove the concrete from the corresponding portions of the sleeper; after the chairs are fixed, concrete is filled in to finish the sleeper.

The thickness of plate A, its total height, and the height of its parts above and below the cuttings for the formation of the side flanges, as well as the distances between the cuttings, will all be calculated in relation to the pressure which the plates may have to support under the traffic conditions of the line for which the sleepers are intended. It is thus seen that the principal portion of the sleeper is its metallic part on which the chairs for the rails are directly fixed, and it is for that reason that we say that the sleeper according to the invention is a sleeper of metal and concrete, and not a sleeper of reinforced or armored cement, which would signify a sleeper whose principle part would be cement and not its metallic armorment. In the sleeper according to the invention the concrete serves to form a foundation for the metallic sleeper and for keeping it in a vertical position. The

side flanges of the metal plate serve to prevent the plate from causing a cutting force upon its bed of concrete.

In order to form the side flanges B B in the plate A, any adequate machine of a known type, whose parts are modified for this purpose, may be employed. The concrete can be applied by the use of a very simple mold in which the metallic sleeper is placed previously in its proper position. The concrete portion of the sleeper is reduced to a minimum, since it has a triangular section.

The principal portion of the metallic sleeper is not parallel to any of the faces of the concrete prism, but, indeed, is perpendicular to one of them and, in an oblique position as regards the others, and therefore will resist eflicaciously the strain in a transversal sense when during the movement the sleeper rests itself or falls by one of its heads into the ground.

I claim 7 1. A sleeper of metal and concrete, for tracks of railroads and such like, in which the metallic portion consists of a plate in which, by means of cuttings and the proper doublings, flanges are formed alternately on the oppositesides of the said plate, and the concrete portion of the sleeper is a block in the shape of a triangular prism which surrounds the said plate, whose principal portion occupies a central position in the block and perpendicular to one of the faces of the same and whose flanges rest substantially parallel to the other two faces of the prism, substantially as described.

2. A metal and concrete railway sleeper, comprising a concrete block in the form of a triangular prism, and a metallic plate surrounded by said concrete block, the said plate having a Vertical body portion ar ranged centrally in said block relative to one of the faces thereof, the lower part of said plate having cut out portions terminating short of the lower end of the body and bent alternately in opposite directions to form flanges extending substantially parallel with the other faces of the block.

' 3. A metal and concrete sleeper for railroads and the like, comprising a concrete block in the form of a triangular prism, a plate having a body portion arranged centrally in said block and perpendicular to one of the faces of the same, the said plate having flange members extending alternately on opposite sides thereof, the flanges extending approximately parallel with the other faces of the prism.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JESSE THOMAS CARNEY.

Witnesses:

RICHARD P. MoMsEN, SAMUEL W. HONAKER.

Copies or this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

' Washington, D. G. 

